package com.cloudbroker.bcs.platform.dav.middle.service;import java.util.List;import com.cloudbroker.bcs.common.service.base.ServiceBase;import com.cloudbroker.bcs.platform.dav.bizapi.service.chat.vo.ChatTopicListForm;import com.cloudbroker.bcs.platform.dav.middle.entity.ChatTopic;public interface ChatTopicService extends ServiceBase<ChatTopic, String> {        ChatTopic getTopicTitle(Long create_by);        List<ChatTopic> getTopicList(ChatTopicListForm form);        int countByBrokerId(Long broker_id, Integer tenant_id);        List<ChatTopic> getHistoryList(Long broker_id, Integer tenant_id, String position_str, Integer request_num);    List<ChatTopic> getTopicListByBroker(List<Long> brokers, Integer tenant_id);    List<ChatTopic> getByTenant(Integer tenant_id);}